MATLAB: Conflict between background and graphics

backgroundconflictgraphicshandle graphics

Hi everybody! I'm using gui matlab to create interfaces. I set a background using axes, and now I have to add a pushbutton that show me a graphic in an other axes space, but when I push it, the graphic appears on my background, even if I correctly set my handles…

I think I need to "lock" my background axes… Or, there're any other solutions?? Can anyone help me?

This is my background code…

function sfondo3_CreateFcn(hObject, eventdata, handles)
axes(hObject)
imshow('image.png');

EDIT 1 14/01/2012 – 01.45 (European Time)

I already have my background image… This is a screenshot of my figure:

http://img221.imageshack.us/img221/2784/imghm.png

I already have my "background axes", set with a background image. When I set a pushbutton's handles that must make me appear a graph, it appears on the background, and not in "axes 2" space…

I want it appears in "Axes 2" without change my background settings…

Best Answer

Hi, Jethro

Just use the same concept.

No matter if you want to plot something in second axes instead of display an image.

Here the example :

function pushbutton1_Callback(hObject, eventdata, handles)
handles.output = hObject;
axes(handles.axes2);
x = -pi:.1:pi;
y = sin(x);
plot(x,y,'ro','linewidth',2); 
axis off
guidata(hObject, handles);

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MATLAB: Wait/retrieve data from another GUI

Hi,

it is possible to do with small trick.

When passing data between GUIs, the idea is via MAT file.

I have 2 GUIs as shown in picture below :

In the first GUI, button 'Threshold' will execute second GUI.

In second GUI, you should threshold the image by changing the slider position and then click OK.

The thresholded image will appears in axes1 of first GUI.

Just try it. I will not explain more.

You should design the GUIs and here the code :

FIRST GUI

-------------------

function varargout = untitled(varargin)
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @untitled_OpeningFcn, ...
                   'gui_OutputFcn',  @untitled_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{1}),    gui_State.gui_Callback = str2func(varargin{1});    end
if nargout,    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else,    gui_mainfcn(gui_State, varargin{:});    end
function untitled_OpeningFcn(hObject, eventdata, handles, varargin)
handles.output = hObject;
handles.I = imread('cameraman.tif');
imshow(handles.I);
guidata(hObject, handles);
function varargout = untitled_OutputFcn(hObject, eventdata, handles) 
varargout{1} = handles.output;
function pushbutton1_Callback(hObject, eventdata, handles)
handles.output = hObject;
tempImg = handles.I;
save('temp.mat','tempImg','-append');
uiwait(untitled2);
load('temp.mat');
handles.I = tempbw;
imshow(handles.I);
guidata(hObject, handles);

SECOND GUI

-------------------

function varargout = untitled2(varargin)
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @untitled2_OpeningFcn, ...
                   'gui_OutputFcn',  @untitled2_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{1}),    gui_State.gui_Callback = str2func(varargin{1});    end
if nargout,    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else,    gui_mainfcn(gui_State, varargin{:});    end
function untitled2_OpeningFcn(hObject, eventdata, handles, varargin)
handles.output = hObject;
load temp.mat
handles.I = tempImg;
handles.bw = handles.I;
imshow(handles.I);
set(handles.slider1,'min',0,'max',1,'sliderstep',[.1 .1]);
guidata(hObject, handles);
function varargout = untitled2_OutputFcn(hObject, eventdata, handles) 
varargout{1} = handles.output;
function slider1_Callback(hObject, eventdata, handles)
handles.output = hObject;
thresh = get(handles.slider1,'value');
handles.bw = im2bw(handles.I,thresh);
imshow(handles.bw);
guidata(hObject, handles);
function slider1_CreateFcn(hObject, eventdata, handles)
if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor',[.9 .9 .9]);
end
function pushbutton1_Callback(hObject, eventdata, handles)
handles.output = hObject;
tempbw = handles.bw;
save('temp.mat','tempbw','-append');
close(untitled2);
function pushbutton2_Callback(hObject, eventdata, handles)
close(untitled2);

I hope this clear.

MATLAB: Error using handle.handle/set Invalid or deleted object.

In your callback for edit1 you replace the handle with the value extracted from the handle. That is confusing at the very least.

Best Answer

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MATLAB: Wait/retrieve data from another GUI

MATLAB: Error using handle.handle/set Invalid or deleted object.

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